Means for attaching asbestos sheathing to structural framework.



' No. 889,831. 8 PATENTED JUNE 2, 1908.

0. E. WADE. MEANS FOR ATTAGHING ASBESTOS SHEATHING T0 STRUCTURALFRAMEWORK.

APPLIOATION FILED r33. 4. 1901.

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QWMMJA n4: "cams PETERS ca. wuumamn. D- c UNITED STATES PATENT v OFFICE.

CHARLES E. WADE, OF NORTH WALES, PENNSYLVANIA, ASSIGNOR TO KEASBEY&MATTISON COMPANY, OF AMBLER, PENNSYLVANIA, A CORPORATION OFPENNSYLVANIA.

MEANS FOR ATTACHING ASBESTOS SHEATHING TO STRUCTURAL FRAMEWORK.

Application filed February 4, 1907.

, To all whom it may concern:

Be it known that I, CHARLES E. WADE, of North Wales, in the county ofMontgomery and State of Pennsylvania, have invented certain new anduseful Improvements in Means for Attaching Asbestos Sheathing toStructural Framework, whereof the following is a specification,reference being had to the accompanying drawings.

My invention relates to an improved means of attachment of asbestossheathing to the framework of sheds and buildings. This sheathing isusually made in sheets of considerable area as distinguished from slatesand shingles, and having sufiicient length to span across the spacebetween adjacent rafters and purlins of a roof truss. The sheets areoverlapped slightly where they rest upon the purlins and are secured totheir supports by means of wire loops having their ends twisted togethertightly to draw said sheets closely together and firmly against theirsupports, thereby making a tight economical form of construction.

In the accompanying drawings Figure I, is a sectional elevation of aportion of a roof embodying my invention. Fig. II, is a detail crosssection.

By referring to Fig. I, it will be noted that the sheets of asbestossheathing 1, 2, and 3, etc., are overlapped, and the joints oroverlapping portions rest upon purlins 4. These purlins are shown aschannel bars, but they may also be made of angle or T bars, as will bereadily understood, and they may run horizontally, attached to uprightsor to roof trusses 5. Furthermore, the framework may be of wood, insteadof metal, if desired. The sheets of lumber may be flat or corrugated.

By referring to Fig. II, it will be noted that the sheets 1, 2, areoverlapped. The overlapping parts coincide with and rest upon thechannel bars. The sheets are provided with registering holes 6, 7, 8,and 9, and the holes 6, and 8, in the outer sheet are fitted withbeveled washers 10, which may be of lead or other sheet metal. Throughthe washers and holes in the sheets are passed the ends 11, and 12, of awire, which may be of aluminum or copper. The wire twice pierces both ofthe overlapped sheets. The wire ends are passed down by the sides of thechannel bar 4, and brought together under the bar and tightly twisted,whereby the sheets 1, 2, are

Specification of Letters Patent.

Patented June 2, 1908.

Serial No. 355,661.

securing the sheathing sheets to the frame-. work of the building, andnotwithstanding its simplicity experience has shown that it is strongand durable, and furthermore that it does not affect the waterproofcharacter of the covering of the building. By overlapping the sheetssufficiently to have each of the wires twice pierce both of said sheets,said:

wires perform the double function of securely fastening the sheets toeach other and to'their support. A stronger construction is producedthan has heretofore been the case, since there is a double thickness ofthe sheets to resist the strain placed thereon by the wires when theyare twisted together, besides forming a tighter joint between theadjacent sheets.

The beveled washers countersunk in the outer surface of the sheathing,prevent the access of rain or moisture at the points where the wirespierce the sheathing, and time only tends to embed them more deeply intoit, for no destructive or corroding action can take place betweenasbestos and metal. Furthermore, by having the metal washers beveled tofit the corresponding cavities in the sheathing, they may be drawn witha wedging action tightly into place by the wires without danger ofbreaking through said sheathing, which is yielding and allows the wedgesto become embedded therein. By this construction it is necessary tooverlap the sheets only slightly in order to allow Wire loops to passthrough both thicknesses of sheathing and around the supportin purlins,and the necessity of covering the ho es made by the securing means withan additional sheet of sheathing is thus obviated, thereby eflecting agreat saving of material. In this respect there is a marked contrastbetween the utility and behavior of the sheathing which I have inventedand structures wherein slates, wooden shingles or clapboards are securedby metallic fasteners such as nails, to an underlying frame. In suchconstruction it is always necessary to overlap the shingles or slatessufliciently to cover the holes made by the securing means.

Obviously if at any point the structure shows a tendency to admit anywater between the overlapping joints it can be overcome by twisting andthus tightening the Wires at that point.

I claim 1. In a structure, the combination of a supporting framework;sheets of overlapped asbestos sheathing of considerable area overlyingthe same, the overlappin portions coinciding in position with the eements of the framework; and wires passing throu h the overlappingportions and secured to t e framework whereby the same element serves tosecure said portions to each other and also to the framework.

2. In a structure, the combination of a supportin framework; sheets ofoverlapped asbestos s eathing of considerable area overlying the same;beveled metal washers seated in corresponding recesses in the outer ofsaid sheets; and wires passing through said washers and sheets andaround the elements of said framework for securing said sheets theretoby twisting together, whereby tightening of the wires forces the beveledwashers the more deeply into said recesses thus forming tight jointsobviating the necessity of an overlying sheet.

3.'In a structure, the combination of a supportin framework; sheets ofoverlapped asbestos s eathing of considerable area overlying the same; awire loop, twice piercing said overlapping portions and also surroundingan element of the framework and secured by twisting its ends at theinside of the framework; and means surrounding said wire whereby a tightjoint is formed around said wire and the necessity of an overlying sheetis obviated.

In testimony whereof, I have hereunto signed my name, at Pittsburg inthe State of Pennsylvania this 26th day of January, 1907.

CHARLES E. WADE.

Witnesses:

O. H. ELLYsoN, THOMAS WATSON.

